This was a 600′ long 6″ diameter cast iron pipe under an active factory. We installed a CIPP liner under the factory floor for this main line and then cleaned 27 connecting laterals. Prior to the UV Cured CIPP Liner there was approximately 5’ long hole in the bottom of the pipe. The pipe was about 50% full of debris to start. In areas of the pipe there we completed a PVC repair in the cast iron. We then rehabilitated 5 of the laterals via epoxy coating CIPP methods.